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AssetManager: use locking

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This commit is contained in:
Mis012
2025-03-05 17:29:27 +01:00
parent 74f2e9f308
commit 2e9099baed
3 changed files with 79 additions and 20 deletions
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67
src/api-impl-jni/android_content_res_AssetManager.c
View File

@@ -30,6 +30,15 @@ enum {
#define JAVA_COOKIE(cookie) (cookie != -1 ? (jint)(cookie + 1) : -1)
#define NATIVE_COOKIE(cookie) (cookie != -1 ? (ApkAssetsCookie)(cookie - 1) : -1)
void _AssetManager_unlock(struct AssetManager ** asset_manager)
{
AssetManager_unlock(*asset_manager);
}
#define AM_SCOPEDLOCK(asset_manager) \
AssetManager_lock(asset_manager); \
__attribute__((__cleanup__(_AssetManager_unlock))) struct AssetManager *_RESERVED_am = asset_manager;
#define ASSET_DIR "assets/"
char *get_app_data_dir();
@@ -38,6 +47,7 @@ JNIEXPORT jlong JNICALL Java_android_content_res_AssetManager_openAsset(JNIEnv *
const char *file_name = _CSTRING(_file_name);
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
struct Asset *asset = AssetManager_openNonAsset(asset_manager, file_name, mode);
android_log_printf(ANDROID_LOG_VERBOSE, "["__FILE__"]", "AssetManager_openAsset(%p, %s, %d) returns %p\n", asset_manager, file_name, mode, asset);
@@ -53,6 +63,7 @@ JNIEXPORT jint JNICALL Java_android_content_res_AssetManager_openAssetFd(JNIEnv
const char *file_name = _CSTRING(_file_name);
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
struct Asset *asset = AssetManager_openNonAsset(asset_manager, file_name, mode);
android_log_printf(ANDROID_LOG_VERBOSE, "["__FILE__"]", "AssetManager_openAssetFd(%p, %s, %d, ...)\n", asset_manager, file_name, mode);
@@ -66,6 +77,9 @@ JNIEXPORT jint JNICALL Java_android_content_res_AssetManager_openAssetFd(JNIEnv
JNIEXPORT jlong JNICALL Java_android_content_res_AssetManager_getAssetLength(JNIEnv *env, jobject this, jlong _asset)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
struct Asset *asset = _PTR(_asset);
return Asset_getLength(asset);
}
@@ -79,6 +93,8 @@ JNIEXPORT jlong JNICALL Java_android_content_res_AssetManager_getAssetRemainingL
JNIEXPORT jint JNICALL Java_android_content_res_AssetManager_readAsset(JNIEnv *env, jobject this, jlong _asset, jbyteArray b, jlong offset, jlong length)
{
int ret;
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
struct Asset *asset = _PTR(_asset);
jbyte *array = _GET_BYTE_ARRAY_ELEMENTS(b);
@@ -92,6 +108,8 @@ JNIEXPORT jint JNICALL Java_android_content_res_AssetManager_readAssetChar(JNIEn
{
int ret;
uint8_t byte;
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
struct Asset *asset = _PTR(_asset);
ret = Asset_read(asset, &byte, 1);
@@ -100,12 +118,18 @@ JNIEXPORT jint JNICALL Java_android_content_res_AssetManager_readAssetChar(JNIEn
JNIEXPORT jlong JNICALL Java_android_content_res_AssetManager_seekAsset(JNIEnv *env, jobject this, jlong _asset, jlong offset, jint whence)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
struct Asset *asset = _PTR(_asset);
return Asset_seek(asset, offset, whence);
}
JNIEXPORT void JNICALL Java_android_content_res_AssetManager_destroyAsset(JNIEnv *env, jobject this, jlong _asset)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
struct Asset *asset = _PTR(_asset);
Asset_delete(asset);
}
@@ -124,6 +148,7 @@ JNIEXPORT void JNICALL Java_android_content_res_AssetManager_init(JNIEnv *env, j
JNIEXPORT void JNICALL Java_android_content_res_AssetManager_native_1setApkAssets(JNIEnv *env, jobject this, jobjectArray paths, int num_assets)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
const struct ApkAssets* apk_assets[num_assets];
for (int i = 0; i < num_assets; i++) {
jstring path_jstr = (jstring)((*env)->GetObjectArrayElement(env, paths, i));
@@ -140,6 +165,7 @@ JNIEXPORT void JNICALL Java_android_content_res_AssetManager_native_1setApkAsset
JNIEXPORT jint JNICALL Java_android_content_res_AssetManager_loadResourceValue(JNIEnv *env, jobject this, jint ident, jshort density, jobject outValue, jboolean resolve)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
uint32_t resId = ident;
struct Res_value value;
uint32_t outSpecFlags;
@@ -172,6 +198,7 @@ JNIEXPORT jint JNICALL Java_android_content_res_AssetManager_loadResourceValue(J
JNIEXPORT jobjectArray JNICALL Java_android_content_res_AssetManager_getArrayStringResource(JNIEnv *env, jobject this, jint ident)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
const struct ResolvedBag* bag = AssetManager_getBag(asset_manager, ident);
jobjectArray array = (*env)->NewObjectArray(env, bag->entry_count, (*env)->FindClass(env, "java/lang/String"), NULL);
for (int i = 0; i < bag->entry_count; i++) {
@@ -204,6 +231,7 @@ JNIEXPORT jint JNICALL Java_android_content_res_AssetManager_getResourceIdentifi
uint32_t ret;
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
if (name_jstr)
name = (*env)->GetStringUTFChars(env, name_jstr, NULL);
if (type_jstr)
@@ -224,6 +252,7 @@ JNIEXPORT jint JNICALL Java_android_content_res_AssetManager_getResourceIdentifi
JNIEXPORT jobject JNICALL Java_android_content_res_AssetManager_getPooledString(JNIEnv *env, jobject this, jint cookie, jint index)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
const struct ResStringPool *string_pool = AssetManager_getStringPoolForCookie(asset_manager, NATIVE_COOKIE(cookie));
size_t len;
const char16_t *string = ResStringPool_stringAt(string_pool, index, &len);
@@ -233,23 +262,31 @@ JNIEXPORT jobject JNICALL Java_android_content_res_AssetManager_getPooledString(
JNIEXPORT jlong JNICALL Java_android_content_res_AssetManager_newTheme(JNIEnv *env, jobject this)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
struct Theme *theme = AssetManager_newTheme(asset_manager);
return _INTPTR(theme);
}
JNIEXPORT void JNICALL Java_android_content_res_AssetManager_deleteTheme(JNIEnv *env, jobject this, jlong theme_ptr)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
Theme_delete(_PTR(theme_ptr));
}
JNIEXPORT void JNICALL Java_android_content_res_AssetManager_applyThemeStyle(JNIEnv *env, jobject this, jlong theme_ptr, jint styleRes, jboolean force)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
Theme_applyStyle(_PTR(theme_ptr), styleRes, force);
}
JNIEXPORT jint JNICALL Java_android_content_res_AssetManager_loadThemeAttributeValue(JNIEnv *env, jobject this, jlong theme_ptr, jint ident, jobject outValue, jboolean resolve)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
struct Theme *theme = _PTR(theme_ptr);
struct Res_value value;
uint32_t outSpecFlags;
@@ -279,12 +316,15 @@ JNIEXPORT jint JNICALL Java_android_content_res_AssetManager_loadThemeAttributeV
}
/* function ported from AOSP - Copyright 2006, The Android Open Source Project */
JNIEXPORT jboolean JNICALL Java_android_content_res_AssetManager_resolveAttrs(JNIEnv *env, jclass this,
JNIEXPORT jboolean JNICALL Java_android_content_res_AssetManager_resolveAttrs(JNIEnv *env, jobject this,
jlong theme_ptr, jint def_style_attr,
jint def_style_res, jintArray java_values,
jintArray java_attrs, jintArray out_java_values,
jintArray out_java_indices)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
struct Theme *theme = _PTR(theme_ptr);
const jsize attrs_len = (*env)->GetArrayLength(env, java_attrs);
const jsize out_values_len = (*env)->GetArrayLength(env, out_java_values);
@@ -355,21 +395,27 @@ JNIEXPORT jboolean JNICALL Java_android_content_res_AssetManager_retrieveAttribu
long out_values, long out_indices)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
struct ResXMLParser *parser = (struct ResXMLParser *)_PTR(parser_ptr);
jint *attrs = (*env)->GetIntArrayElements(env, java_attrs, 0);
return RetrieveAttributes(asset_manager, parser, (uint32_t *)attrs, attrs_len, (uint32_t *)_PTR(out_values), (uint32_t *)_PTR(out_indices));
jboolean ret = RetrieveAttributes(asset_manager, parser, (uint32_t *)attrs, attrs_len, (uint32_t *)_PTR(out_values), (uint32_t *)_PTR(out_indices));
(*env)->ReleaseIntArrayElements(env, java_attrs, attrs, JNI_ABORT);
return ret;
}
JNIEXPORT void JNICALL Java_android_content_res_AssetManager_applyStyle(JNIEnv *env, jclass this,
JNIEXPORT void JNICALL Java_android_content_res_AssetManager_applyStyle(JNIEnv *env, jobject this,
jlong theme_ptr, jlong parser_ptr,
jint def_style_attr, jint def_style_res,
jintArray java_attrs, jint attrs_len,
long out_values, long out_indices)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
struct Theme *theme = _PTR(theme_ptr);
struct ResXMLParser *parser = (struct ResXMLParser *)_PTR(parser_ptr);
@@ -384,6 +430,7 @@ JNIEXPORT void JNICALL Java_android_content_res_AssetManager_applyStyle(JNIEnv *
JNIEXPORT jint JNICALL Java_android_content_res_AssetManager_getArraySize(JNIEnv *env, jobject this, jint ident)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
const struct ResolvedBag* bag = AssetManager_getBag(asset_manager, ident);
return bag->entry_count;
}
@@ -391,6 +438,7 @@ JNIEXPORT jint JNICALL Java_android_content_res_AssetManager_getArraySize(JNIEnv
JNIEXPORT jint JNICALL Java_android_content_res_AssetManager_retrieveArray(JNIEnv *env, jobject this, jint ident, jintArray outArray)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
jint *array = (*env)->GetIntArrayElements(env, outArray, NULL);
const struct ResolvedBag* bag = AssetManager_getBag(asset_manager, ident);
@@ -417,6 +465,7 @@ JNIEXPORT jint JNICALL Java_android_content_res_AssetManager_retrieveArray(JNIEn
JNIEXPORT jstring JNICALL Java_android_content_res_AssetManager_getResourceName(JNIEnv *env, jobject this, jint ident)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
struct resource_name res_name;
gchar *type8 = NULL;
gchar *entry8 = NULL;
@@ -444,6 +493,7 @@ JNIEXPORT jstring JNICALL Java_android_content_res_AssetManager_getResourceName(
JNIEXPORT jstring JNICALL Java_android_content_res_AssetManager_getResourcePackageName(JNIEnv *env, jobject this, jint ident)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
struct resource_name res_name;
bool ret = AssetManager_getResourceName(asset_manager, ident, &res_name);
return (ret && res_name.package) ? (*env)->NewStringUTF(env, res_name.package) : NULL;
@@ -452,6 +502,7 @@ JNIEXPORT jstring JNICALL Java_android_content_res_AssetManager_getResourcePacka
JNIEXPORT jstring JNICALL Java_android_content_res_AssetManager_getResourceTypeName(JNIEnv *env, jobject this, jint ident)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
struct resource_name res_name;
bool ret = AssetManager_getResourceName(asset_manager, ident, &res_name);
if(!ret)
@@ -464,6 +515,7 @@ JNIEXPORT jstring JNICALL Java_android_content_res_AssetManager_getResourceTypeN
JNIEXPORT jstring JNICALL Java_android_content_res_AssetManager_getResourceEntryName(JNIEnv *env, jobject this, jint ident)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
struct resource_name res_name;
bool ret = AssetManager_getResourceName(asset_manager, ident, &res_name);
if(!ret)
@@ -476,6 +528,7 @@ JNIEXPORT jstring JNICALL Java_android_content_res_AssetManager_getResourceEntry
JNIEXPORT jint JNICALL Java_android_content_res_AssetManager_loadResourceBagValue(JNIEnv *env, jobject this, jint ident, jint bagEntryId, jobject outValue, jboolean resolve)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
ApkAssetsCookie cookie = -1;
const struct ResolvedBag* bag = AssetManager_getBag(asset_manager, ident);
@@ -511,8 +564,11 @@ JNIEXPORT jint JNICALL Java_android_content_res_AssetManager_loadResourceBagValu
return JAVA_COOKIE(cookie);
}
JNIEXPORT void JNICALL Java_android_content_res_AssetManager_copyTheme(JNIEnv *env, jclass class, jlong dest, jlong src)
JNIEXPORT void JNICALL Java_android_content_res_AssetManager_copyTheme(JNIEnv *env, jobject this, jlong dest, jlong src)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
Theme_setTo(_PTR(dest), _PTR(src));
}
@@ -524,6 +580,7 @@ JNIEXPORT void JNICALL Java_android_content_res_AssetManager_setConfiguration(
jint screenLayout, jint uiMode, jint majorVersion)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
const struct ResTable_config config = {
.mcc = mcc,
.mnc = mnc,
@@ -587,6 +644,7 @@ JNIEXPORT jobjectArray JNICALL Java_android_content_res_AssetManager_list(JNIEnv
JNIEXPORT jlong JNICALL Java_android_content_res_AssetManager_openXmlAssetNative(JNIEnv *env, jobject this, jint cookie, jstring _file_name)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
const char *file_name = (*env)->GetStringUTFChars(env, _file_name, NULL);
struct Asset *asset = AssetManager_openNonAsset(asset_manager, file_name, ACCESS_BUFFER);
(*env)->ReleaseStringUTFChars(env, _file_name, file_name);
@@ -600,6 +658,7 @@ JNIEXPORT jlong JNICALL Java_android_content_res_AssetManager_openXmlAssetNative
JNIEXPORT jobjectArray JNICALL Java_android_content_res_AssetManager_getLocales(JNIEnv *env, jobject this)
{
struct AssetManager *asset_manager = _PTR(_GET_LONG_FIELD(this, "mObject"));
AM_SCOPEDLOCK(asset_manager)
char **locales = AssetManager_getLocales(asset_manager, false, true);
int i = 0;
while (locales[i] != NULL) i++;

8
src/api-impl/android/content/res/AssetManager.java
View File

@@ -709,12 +709,12 @@ public final class AssetManager {
/*package*/ static final int STYLE_DENSITY = 5;
/*package*/ static final int STYLE_SOURCE_RESOURCE_ID = 6;
/*package*/ native static final void applyStyle(long theme, long parser,
/*package*/ native final void applyStyle(long theme, long parser,
int defStyleAttr, int defStyleRes,
int[] inAttrs, int length,
long outValuesAddress, long outIndicesAddress);
/*package*/ native static final boolean resolveAttrs(long theme, int defStyleAttr,
/*package*/ native final boolean resolveAttrs(long theme, int defStyleAttr,
int defStyleRes, int[] inValues,
int[] inAttrs, int[] outValues,
int[] outIndices);
@@ -749,8 +749,8 @@ public final class AssetManager {
private native final long newTheme();
private native final void deleteTheme(long theme);
/*package*/ native static final void applyThemeStyle(long theme, int styleRes, boolean force);
/*package*/ native static final void copyTheme(long dest, long source);
/*package*/ native final void applyThemeStyle(long theme, int styleRes, boolean force);
/*package*/ native final void copyTheme(long dest, long source);
/*package*/ native final int loadThemeAttributeValue(long theme, int ident,
TypedValue outValue,
boolean resolve);

6
src/api-impl/android/content/res/Resources.java
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@@ -1246,7 +1246,7 @@ public class Resources {
* @param other The existing Theme to copy from.
*/
public void setTo(Theme other) {
AssetManager.copyTheme(this.theme, other.theme);
getAssets().copyTheme(this.theme, other.theme);
}
/**
@@ -1355,7 +1355,7 @@ public class Resources {
// out the attributes from the XML file (applying type information
// contained in the resources and such).
XmlResourceParser parser = (XmlResourceParser)set;
AssetManager.applyStyle(theme, set != null ? ((XmlBlock.Parser)set).mParseState : 0,
getAssets().applyStyle(theme, set != null ? ((XmlBlock.Parser)set).mParseState : 0,
defStyleAttr, defStyleRes,
attrs, attrs.length, array.mDataAddress, array.mIndicesAddress);
array.mRsrcs = attrs;
@@ -1418,7 +1418,7 @@ public class Resources {
}
final TypedArray array = TypedArray.obtain(Resources.this, len);
AssetManager.resolveAttrs(theme, 0, 0, values, attrs, array.mData, array.mIndices);
getAssets().resolveAttrs(theme, 0, 0, values, attrs, array.mData, array.mIndices);
array.mTheme = this;
array.mXml = null;